春节前后是铁路客运的高峰,车票往往提前售空。Chūnjié qiánhòu shì tiělù kèyùn de gāofēng, chēpiào wǎngwǎng tíqián shòu kōng.The period around Spring Festival is the peak for railway passenger transport, and tickets are often sold out in advance.
早高峰时地铁里挤满了上班的人。Zǎo gāofēng shí dìtiě lǐ jǐ mǎn le shàngbān de rén.During the morning rush hour the subway is packed with people going to work.
他在事业高峰时决定退休,让大家很吃惊。Tā zài shìyè gāofēng shí juédìng tuìxiū, ràng dàjiā hěn chījīng.He decided to retire at the peak of his career, which surprised everyone.